Chbistian mombeeg



Patented Febf? .1A/VMM@ n C. MOMBERG., -INLAIVD FLOOR..

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(No Model.)

UNITED STATES CHRISTIAN MOMBERG, on

PATENT" ifIIFICE.,4

COPENHAGEN, DENMARK.

INLAID FLOOR.

SPECIFICATION forming part of Letters Patent No. 377,685, dated February '7, 188s.

Application filed' August 1B, 1887.

To all whom t may concern.-

Be it known that I, CHRISTIAN MOMBERG, a subject of th`e King of Denmark, residing at Copenhagen, in the Kingdom of -Denmark,have invented certain new and usefulv Improvements in Inlaid Floors; and Ido declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of -this specification, and in which- Figure 1 represents a top or plan view of my improved inlaid flooring, having a portion thereof with the veneering removed.- Fig. 2 is a longitudinal vertical sectional view on the line a; a, Fig. l1.- Fig. 3 is a transverse section on the line y y, Fig. l. Fig. 4 is a detail View in perspective of the under side of one 0f the square or rectangular blocks. Fig. 5 is a detail view of one of the lling-strips, and Fig. 6 is a detail view showing the iilling-strip and block properly adjusted to the cross-beam or joist.

Similar letters of reference indicate corresponding parts in all the igures.

My invention consists in the novel construction ofsocalled marquet7 or inlaid floors; and the object of the same is to dispense with the planks or ordinary iiooring which is now usually employed in constructing oors of that description.

Reference being had to the accompanying drawings, the letter A represents the frame of my improved inlaid or marquet ooring, consisting of the beams orljoists B, provided with rabbeted edges b b, and a series of intermediate illing-strips, C, having grooves c c in their end edges, said grooves fittingoverthe upper tongues formed by the rabbeted edges of the beams or joists B. The intermediate pieces or iilling-strips are also provided on their side edges with longitudinal flanges c c.

The joists or beams are laid transversely across and secured to the usual supportinggirders, A', in any desirable manner, and in practice the intermediate pieces oriillin g-stri ps are introduced from the open end of the frame, the grooves of said fillingstrips engaging the serial M24-1,242. (No model.)

by the rabbetededges of the joists Bextend laterally a greater distancethan the upper iianges thereof, thereby assisting to support the intermediate pieces, C, and also the fillingblocks D. These filling-blocks D are of square or rectangular shape, having on their edges -Which border onV theA joists or cross -pieces grooves d d, similar to the grooves in the end edges of the intermediate pieces, C, and also provided on their other two edges or sides with under-cuts adapted to overlap the flanges c c of the intermediate pieces or lling-strips, thereby bringing the upper surface of these blocks flush with the upper surface of the intermediate filling-strips. By this construction it will be seen that the upper tongues formed by the grooved edges of thelling-blocks and intermediate lling-strips will overlap the upper tongues of the joists or beams B, formed b the rabbeted edges thereof, whereby a iillingspace is formed throughout the entire length of the joists, which may be filled with veneering, E, of any ornamentalI design or pattern, whereby an even'flooring is attained, the strips of veneering, E, being or'sufticient thickness to fill in the space above the j oists or cross-pieces.

In constructing this floor the filling-strips, as stated, are first introduced from the'open end of the frame, after which a row 0r series of filling-blocks are inserted,the upper tongues ofthe joists or beams, as in the case of the iilling-strips, engaging the grooved ends of said blocks. In this manner the filling strips and blocks are inserted sertatz'm until the flooring has been completed.

In Fig. 1 of the .drawings I have shown a portion of the frame with the squarellingblocks removed and the intermediate illingstrips adjusted, thereby forming open squares F, which'indicate the space covered by the square filling-blocks D, and indicating the construction of the edges ofthe vbeams or joists'.

The lling strips and blocks are decorated upon their upper surface in any ornamental pattern corresponding in design to the veneering above the joist orcross-pieces... By employing this method of constructing inlaid vliooring I not only avoid expense, but also the p various other drawbacks incident to the use of the ordinary wooden doors under-the inlaid p A upper flange of the joists or beams B.

It will be seen .that the lower flanges formed flooring, the chief objection to that construe` tion being that the planks which are placed under the veneers are often uneven, or become so by shrinkage or from other reasons-for example, when they become moist through atmospheric influences. Vhenever this happens the warping of the underlying floor will of course effect the inlaid iioor more or less, thus marring the effect ofthe same, and also destroyi ing its durability.

From the foregoing description, taken in connection with the accompanying drawings, the construction and advantages of my im provement will be readily understood without requiring further explanation.

Having thus described myinvention, I claim and desire to secure by Letters Patent of the United States- 1. In an inlaid iooring, the combination, with the girders, the joists, and the intermediate pieces, said pieces provided with longitudinal flanges, of the square or rectangular filling-blocks having their edges undercut,said undercut edges adapted to be supported by the flanges ofthe intermediate pieces.

2. The combination of the joists provided with rabbeted edges, the filling strips and blocks having grooved edges adapted to lit over the upper tongues formed by the rabbeted edges of thejoists or beams, and the inlaid portion or veneering.

3. The combination of the joists or beams having rabbets on opposite edges thereof, the intermediate strips provided with grooved end edges and having longitudinal flanges upon their side edges, the square or rectangular fillingblocks provided with grooves upon two of their edges and under-cuts upon their remaining two edges, and the inlaid portion or veneering superimposed upon said joists or beams.

a. The combination of the joists or beams having rabbets on opposite edges or sides thereof, said rabbets forming upper and lower tongues or flanges, the lower tongue or iiange extending laterally a. greater distance than the upper tongue or Iiange, the intermediate filling-strips provided with grooved end edges and having longitudinal flanges upon their side edges, the square or rectangular filling-blocks provided with grooves on two of their edges and under-cuts upon the remaining two edges, and the inlaid portion superimposed upon said josts or beams.

In testimony whereof I have hereto aiiixed my signature in presence of two witnesses.

CHRISTIAN MOM BERG.

Witnesses:

Vieeo C. EBERTH, P. M. PETnnsnN. 

